InChI=1/C15H21N3O2/c1-15(2,3)11-4-6-12(7-5-11)17-14(20)18-9-8-16-13(19)10-18/h4-7H,8-10H2,1-3H3,(H,16,19)(H,17,20)/f/h16-17H 8FB17146B70F9A43